Floor-polisher.



G. W. VAN ALSTYNE.

FLOOR POUSHER. APPLICATION FILED OCT. 28. 1914.

Patented Dec. 21, 1915.

2 SHEETS-SHEET 1.

NGTON. D. c.

G. W. VAN ALSTYNE.

noon POLISHER.

APPLICATION HLED OCT. 28, I914.

Patented Dec. 21, 1915.

2 SHEETS-SHEET 2.

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GEORGE W. VAN ALSTYN E, OF LOS ANGELES, CALIFORNIA.

FLOOR-POLISHER.

Specification of Letters Patent.

Patented Dec.21,1915.

Application filed October 28, 1914. Serial No. 868,996. 1

Another andmore specific object of the invention is to provide a floor polisher which may be manufactured at a minimumcost, and which is practical, unbreakable and without intricate mechanism.

With these and other objects in View, the invention consists in certain novel features of construction, combination and arrangement of parts as will be hereinafter fully described, illustrated and claimed.

Referring to the drawings: Figure 1 is a top plan view of my polisher with the handle shown in dotted lines. vFig. 2 is a side elevation. Fig. 3 is a vertical longitudinal sectional View. Fig. 4: is an end elevation of the polisher. Fig. 5 is a section taken on the plane of line 55 of Fig. 1. Fig. 6 is a transverse sectional view taken on the plane of line 66 of Fig. 1. Fig. 7 is a sectional view showing a strip of carpet. clamped to the polisher. Fig. 8 is a View similar to Fig. 7, showing a piece of sand paper in place of the carpet. Fig. 9 is a detail View of one of the clamping levers. Fig. 10 is a section taken on line 1010 on Fig. 9. I

Referring to the drawings by numerals, 1 designates as an entirety a hollow blockcasting forming the body of the polisher and having a chamber 2 opening downwardly, thus leaving a top wall 3, side walls 4, 5 and end walls (5,7. A peripheral flange 8 surrounds the lower edge of the body, and is somewhat wider at-the ends thereof than along the sides.

A pair of end or attaching plates 9 are secured to the'body 1 by meansof bolts 10,

and the body is recessed, as indicated bythe numeral 11, to' receive said plates. The plates are angular and are provided on their upper faces with inwardly projecting fingers or lugs 12, Which are offset so as to be spzcrlced slightly from the upper edge of the To adjustably and removably secure the handle socket 13 in position at the top of the body, I form the latter with a central longitudinal opening 14 communicant with the chamber 2, and side walls of this opening are provided, intermediate their ends, with arranged in place. T hebody is also formed inits upper face and to one side of the central longitudinal opening with a spring receiving recess 16. The handle socket is provided with a pair of laterally extending trunnions 17, which fit loosely within the notches 15, and which are held therein by means of a slidable locking plate 18, resting upon the top of the casting or body beneath a plurality of upwardly opening notches 15 the lugs or fingers 12. As shown in Fig.1,

the locking plate 18' is provided with a central longitudinal opening 19 having notches 20 formed in its side edges to register with the notches 15 of the body when it is desired to disconnect the handle socket 13. The plate 18 may be slid longitudinally by means of the upturned end flanges 21, said flanges projecting between the fingers 12 and preventing lateral movement of the plate.

The plate, however, is of such length as to.

slide longitudinally a distance sufiicient ,to cover and uncover the notches 15. The plate is locked in operative position by. a flat spring 22 having a tooth or ridge 23 which springs into the groove 24- of the plate.

A'block-25 of any suitable material is clamped to the bottom of the body by the bolts 10, and preferably carries a felt base covering 26 which is admirably adapted for use as a cushioning material. To provide for securing strips of other material, such, for instance, as carpet, or canvas to the body, I provide side jaws or clamps 27. These clamps are preferably formedof single lengths of spring. steel wire bent so as to form a central clamping portion28, and U- shaped spring sections 29 at the terminals of the clamping section, and angular attaching end portions 30 having their ends turned upwardly.

JThe spring portions 29 and the attaching portions 30 of the clamps lie in planes parallel with the ends of the body, and are held in this position by pivoted levers 31. These levers are preferably stamped from sheet metal and have their inner ends enlarged as shown with the central portions against the body.

' vers are bent'to form hooks 85, which partly thereof stamped inwardly as shown in Fig. 9

to provide cams 32 having encircle the outer sections of the spring'portions 29, so as to prevent'the spring being. sprung outwardly. It will be noted, by ref erence to Fig.- 4, that when the levers are brought into operative positions, the inner i and sliding plate 18 are ends of the clamps come together so that undue strain cannot be brought to bea'r'upon theme In assembling the polisher, the spring 22 first placed in posl tion on top of the body, and then the attaching plates 9 carrying the clamps 27 are secured tothe body by the bolts 10, which pass upwardly through the block 25, thus holding the block in position. Next, the handle may be secured within one pair of the openings 19, and then any suitable piecev of material for contact with the floor, such as the carpet strip 36, shown in Fig. 7 or a sand paper strip 37, shown in Fig. 8 may besecured in position by the clamps; block '25 with a felt face, substituted.

' The various pairs of notches 15 allow the handle to be secured to the body in different positions to best suitthe operator, and the relative length of the trunnions 17 with respect to the distance between the notches, allows the handle-to be swung transversely of I the body.

From the foregoing description taken in connection with the accompanying drawings, it will be apparent that I have provided a very practical and durable floor treating device, and it is to be understood that I do not wish tobe limited in construc-* tion to the exact formation shown and described, but may make such changes as Wlll fall within the scope and spirit of the 'inven-- tion as claimed.

7 What I claim is:

' 1. Ina polishing device of the character described, a body casting, attaching plates secured to the ends thereof, a 'pair of jaws I extending longitudinally of'the body for engagement with the sides thereof, and apair Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents;

straight faces 33. Rivets 34: pivotally secure the levers Instead of using a a brush may be the lock levers-being secured to. the attaching plates.

2. In afloor polisher arbody casting, a

pair'of clampingmembe'rs each having a central clamping section extendmg longitudmally of the body for engagement w1th the bers being disposed parallel to th'e'ends' of "said body casting a-pair of pivoted levers nally of the body for engagement with thesides thereof, the clampingmembers being bent around the cams, whereby when the levers are turned, the cams will operate to actuate the clamping members.

4:. In a polisher, a body casting, a pair of i end plates secured thereto, two' pairs oflevers pivoted to the end plates to swing in -a plane parallel therewith and formed with cams, a pair of clamping members having clamping portions extending longitudinally of the body for engagement with the sides sidesther'eof, the ends of the clamping mem- 0 be ng carried thereof, the clamping members vbeing bent around the cams, whereby when the levers are turned, the cams will op'erateto actuate the clamping members, and a hook formed on the free end of each lever to'engage the clamping members and prevent the latter being sprung away from the body.

5. Ina polisher,'a body, a pair-of clamp ing members, the end portions of said clamping members being bent at right angles to the central portions thereof, and disposedagainst the end of the body, a pair of pivoted levers secured to each'end of the body and formed with cam portions, the end portions of the clamping members being bent around sa1d cams, and hooks formed on the" free end of the clamplng' members to hold the central portions of the clamping members against outward movement.

In testimony whereof, I have my hand at Los; Angeles, 14th day of October, 1914:. 1

GEORGE W. VAN ALSTYNE. In presence of a f 3 RODNEY M. SMITH,

FREDERICK S. LYON.

hereunto set. California, this Washington, D. 0.? 

